Liquid-gage.



M. M. BURDEN.

LIQUID GAGE.

I APPLICATION FILED DBO. 3,1908.

Patented 0ct.18,1910.

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LIQEEID GAGE. APPLICATION FILED DBO. 3, 1908.

Patented Oct. 18,1910.

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'ATI'ORNEK MORO M. BORDEN, F OOLLIN GSWOOD, NEW JERSEY, ASSIGNOR TO SIMPLEX VALVE AND METER COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

LIQUID-GAGE.

Specificationof Letters Patent. Patented 00.17. 18, 1910.

Application filed December 3, 1908. Serial No. 465,777.

To all whom it may concern:

-,Be it known that I, Mono M. BORDEN, a citizen of the United States, residing at Collingswood, in the county of Gamdemand State of New Jersey, have invented certain Improvements in Liquid-Gages.

My invention relates to liquid gages for I indicating diflerential pressures and it is designed particularly for indicating rate of flow and loss of head by improved means for differentiating the heights to which liquid rises due to various pressures.

The characteristic features of the improvements are fully disclosed in the following description and the accompanying drawings in illustration thereof.

In the drawings, Figure 1 is a sectional elevation representing my improvements aptherefrom the chambers 2, 3, and 4. The

bottom of the chamber 2 is connected by a pipe 5 with a filter 6 at a point above its bed, the bottom of the chamber 3 is connected by a ipe 7 with a normal section 8 of a V conduit eading from the filter, and the bottom of the chamber 4 is connected by a pipe 9-with the throat of a venturi section 10 connected with the conduit section 8. The casing '1 has setin the ends thereof the adjust-' able pivotal bearings 11 which engage the ends of a revoluble shaft 12 having screws 13 and 14 thereon.

Sheaves 15 and 16 are fixed to thevshaft, sheaves 17 and 18 integrally connected with a cylindrical, rack'19are movable along the shaft by the screw 13, and sheaves 20 and 21 integrally connected with a cylindrical rack 22 are movable along the shaft by the screw 14. The sheave 15 carries a cord or wire 23 having on the lower end thereof a float 24 which is movable in the chamber 3 with variations in the-height of liquid supporting it therein. The sheave 16 carries a cord or wire 25 with weight 26 thereon for counterbalancing the float 24; The sheave 17 carries a wire or cord .26. connected with a float 27 which is movable in the chamber 2 with variations in the hei ht of the liquid supporting it therein, the cat being counterbalanced by means of a cord or wire 28 connected with the sheave 18 and a weight 29 connected with this cord. The, sheave 20 carries a cord or wire 30 by which a float 31 is suspended in the chamber 4 and rests upon the liquid column therein, the float being counterbalancedby means of a cord or wire 32'fixed to the sheave 21 and a weight 33 fixed to this cord.

A shaft 34, journaled in the bearings 35 and 36, has fixed thereon a gear wheel 37,

which engages the cylindrical rack 19, and a gear wheel 38, which engages a gear wheel 39 fixed to the graduateddial 40, the latter having a journal 41 carried by the casing whereby the graduations of the dial are revoluble past the casing opening 42 and the stationary pointer 43. A shaft 44, journaled in the bearings 45 and 46, has fixed thereon a gear wheel 47 which engages the cylindrical rack 22.- A graduated dial 48 is fixed on the shaft 44 so that its graduations are revoluble past the casing opening 49 and the stationary pointer 50.

In the operation of the apparatus, the pressure of the liquid in the top of the-filter 6 will maintain liquid at the 'same level in the chamber 2, and the pressure of liquid in the c .nduit section 8 will maintain liquid in' the chamber 3, so that the difference in the levels of the liquid in these chambers will depend upon the resistance offered by the filter bed which is disposed between them and consequently the differences between the levels in these chambers are functions of the loss of head due to the obstruction to flow offered by the bed. When there is no flow in the'conduit, the columns in these chambers will stand at the same level under normal conditions. When the flow in the conduit starts or-increases, the head in the filter being maintained, the liquid and the float in 10 the shaft 34 andthe dial 40 so that the loss 110 of head will be indicated on the dial by the pointer 43. It will be understood that the result of the movement of the shaft 12 by the float 24 will be modified by the movement-of the float 27, due to the height of the water in the filter, which, on falling effects a downward movement of the float 27 and a revolution of the cylindrical rack 19 in-the direction of the arrow, by which this rack has a tendency to move through its connection with the worm 13 in the direction of -the sheave 15. Hence the pointer will indicate upon the dial the diflerential movements of these floats. When there is no flow in the conduit, the liquid therein will rise to the same level in chambers 3 and 4, andas the flow increases from zero the difierence in the liquid levels in these two chambers will increase, the difference in level being a function of the rate of flow. A change in the elevation of the liquid and the float in the chamber 3 will revolve the rod 12 and its screw 14 which acts to move the cylindrical 55. The sheave 56 is journa rack 22 longitudinally andrevolve the shaft 44 with the dial 48 thereon. A change in elevation of the liquid and the float in the chamber 4 revolves the sheaves 20 and 21 which by reason of the engagement with the screw 14 tends tomove the rack 47 longitudinally and revolve the dial 48-. Hence the movements of these floats are differentiated and the rate of flow indicated by the movementof the dial past the stationary pointer 50.

In the modification shown in Figs. 3 and- 4, the casing 51, with the float chambers 52 and 53 depending therefrom, contains a shaft 54 journaled between the pivotal bearings ed on this shaft and carries'the cord or wire 57 which is connected with the float 58 in the chamber 52.

The sheave 59 is fixed to the sheave 56 and carries a cord 60 which passes over a sheave- 61 to a weight 62 for counterbalancing the float 58. The sheave 63 is fixed to the shaft 54 and carries the cord or wire 64 which supports the float 65 in the chamber 53 and fixed to the sheave 63 is the sheave 66 which carwheel 76, which engages the rack 71, and a gear wheel 83 whic ries a cord 67 passing over a sheave 68 to a weight 69 for counterbalancing the float 65. r The shaft 54 is provided w1th a screw or worm 70 and engaged thereby is a, cylindrical rack 71 movable on the guides 72 which are fixed to and revoluble with the sheave 59.

A revoluble shaft 73, journaled in the bearings 74 and 75, has fixed thereona gear pointer 77 which is movable over a dial 78. A revoluble .shaft 79, journaled between the bearings 80 and 81, has fixed thereon a worm wheel. 82, which en ages the worm 70, and a engages the gear wheel 84. The wheeel 84. is fixed to the sleeve which is journaledv in the bearing 75 and carries the pointer 85 movable over the dial liquid 86. It will be understood that the vertical movement of the float 58 revolves. the sheaves 56 and 59 and t-he'rack 71 on the shaft 54,

whereby the worm 70 tends to cause the rack to move longitudinally to revolve the gear Consequently the movements of the floats will be differentiated by the intermediate mechanism and the pointer will indicate on the dial 78 either loss of head or rate of flow, depending upon the manner of operating the floats. The revolution of the worm wheel 82 causes the shaft 79 to act through the gear wheels 83 and 84 to revolve the pointer 85 over the dial 86, by which the movements of the float 65 may be indicated and consequently variations in level in the supporting it. K I,

Having described my invention, I claim: '1. In a liquid gage, a revoluble shaft havmg ascrew thereon, a rack engaged by said screw and movable longitudinallyon said shaft, a second revoluble shaft, a pinion on said second shaft engaged by said rack, means comprisin an indicating device connected with an shaft, a sheave connected with and ada ted for revolving said 'ishaft first name a sheave connected with and adapted for revolvmg said rack," floats, means whereby said floats are connected with and adapted for revolvin the respective sheaves, chambers containing the respective floats, a conduit, and means forconnecting different sections of said conduit with the respective operated by said second ing the respective sheaves, chambers containmg the respective floats, a filter bed, and

means whereby liquid ressures are communicated'from points a ove and below'said filter bed to the respective chambers.

3. In a liquid gage, in combination with a conduit'having a contracted section, a chamber, means whereby said chamber is connected with a normal section of said conduit, a second chamber, means whereby said second chamber is connected with said con,- tra'cted section of said conduit, floats in said chambers respectively, a revoluble shaft having a screw thereon, a rack sleeved on said shaft in engagement with said screw, a sheave connected with and adapted to revolve said shaft, means whereby one of said floats revolves said sheave, a sheave con-- nected with and adapted to revolve said 0 rack, means whereby the other of said floats revolves said sheave last named, and indicatin means connected with and operated by sald rack.

4. In a liquid gage, a revoluble shaft hav- 5 ing a screw thereon, a wheel engaged and L operated by said screw, indicating mechalllSIll operated by said wheel, a revoluble rack movable by said screw, a wheel engaged and operated by said rack, indicat mg mechanism operated by said wheel last named, and differential mechanism for operating said screw and rack.

In witness whereof I have hereunto set my name this. 30th day of November A. D.

1908, in the presence of the subscribing wit- 25 

